Satellite-derived sea ice export and its impact on Arctic ice mass balance
<p>Sea ice volume export through the Fram Strait represents an important freshwater input to the North Atlantic, which could in turn modulate the intensity of the thermohaline circulation. It also contributes significantly to variations in Arctic ice mass balance. We present the first esti...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2018-09-01
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| Series: | The Cryosphere |
| Online Access: | https://www.the-cryosphere.net/12/3017/2018/tc-12-3017-2018.pdf |
| _version_ | 1818370322587451392 |
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| author | R. Ricker R. Ricker F. Girard-Ardhuin T. Krumpen C. Lique |
| author_facet | R. Ricker R. Ricker F. Girard-Ardhuin T. Krumpen C. Lique |
| author_sort | R. Ricker |
| collection | DOAJ |
| description | <p>Sea ice volume export through the Fram Strait represents an
important freshwater input to the North Atlantic, which could in turn
modulate the intensity of the thermohaline circulation. It also contributes
significantly to variations in Arctic ice mass balance. We present the first
estimates of winter sea ice volume export through the Fram Strait using
CryoSat-2 sea ice thickness retrievals and three different ice drift products
for the years 2010 to 2017. The monthly export varies between −21 and
−540 km<sup>3</sup>. We find that ice drift variability is the main driver of
annual and interannual ice volume export variability and that the
interannual variations in the ice drift are driven by large-scale variability
in the atmospheric circulation captured by the Arctic Oscillation and North
Atlantic Oscillation indices. On shorter timescale, however, the seasonal
cycle is also driven by the mean thickness of exported sea ice, typically
peaking in March. Considering Arctic winter multi-year ice volume changes,
54  % of their variability can be explained by the variations in ice
volume export through the Fram Strait.</p> |
| first_indexed | 2024-12-13T23:37:54Z |
| format | Article |
| id | doaj.art-53459a20fe504c5f9a1903c7f1594f21 |
| institution | Directory Open Access Journal |
| issn | 1994-0416 1994-0424 |
| language | English |
| last_indexed | 2024-12-13T23:37:54Z |
| publishDate | 2018-09-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | The Cryosphere |
| spelling | doaj.art-53459a20fe504c5f9a1903c7f1594f212022-12-21T23:27:15ZengCopernicus PublicationsThe Cryosphere1994-04161994-04242018-09-01123017303210.5194/tc-12-3017-2018Satellite-derived sea ice export and its impact on Arctic ice mass balanceR. Ricker0R. Ricker1F. Girard-Ardhuin2T. Krumpen3C. Lique4Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, Bussestrasse 24, 27570 Bremerhaven, GermanyUniv. Brest, CNRS, IRD, Ifremer, Laboratoire d'Oceanographie Physique et Spatiale (LOPS), IUEM, 29280, Brest, FranceUniv. Brest, CNRS, IRD, Ifremer, Laboratoire d'Oceanographie Physique et Spatiale (LOPS), IUEM, 29280, Brest, FranceAlfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, Bussestrasse 24, 27570 Bremerhaven, GermanyUniv. Brest, CNRS, IRD, Ifremer, Laboratoire d'Oceanographie Physique et Spatiale (LOPS), IUEM, 29280, Brest, France<p>Sea ice volume export through the Fram Strait represents an important freshwater input to the North Atlantic, which could in turn modulate the intensity of the thermohaline circulation. It also contributes significantly to variations in Arctic ice mass balance. We present the first estimates of winter sea ice volume export through the Fram Strait using CryoSat-2 sea ice thickness retrievals and three different ice drift products for the years 2010 to 2017. The monthly export varies between −21 and −540 km<sup>3</sup>. We find that ice drift variability is the main driver of annual and interannual ice volume export variability and that the interannual variations in the ice drift are driven by large-scale variability in the atmospheric circulation captured by the Arctic Oscillation and North Atlantic Oscillation indices. On shorter timescale, however, the seasonal cycle is also driven by the mean thickness of exported sea ice, typically peaking in March. Considering Arctic winter multi-year ice volume changes, 54  % of their variability can be explained by the variations in ice volume export through the Fram Strait.</p>https://www.the-cryosphere.net/12/3017/2018/tc-12-3017-2018.pdf |
| spellingShingle | R. Ricker R. Ricker F. Girard-Ardhuin T. Krumpen C. Lique Satellite-derived sea ice export and its impact on Arctic ice mass balance The Cryosphere |
| title | Satellite-derived sea ice export and its impact on Arctic ice mass balance |
| title_full | Satellite-derived sea ice export and its impact on Arctic ice mass balance |
| title_fullStr | Satellite-derived sea ice export and its impact on Arctic ice mass balance |
| title_full_unstemmed | Satellite-derived sea ice export and its impact on Arctic ice mass balance |
| title_short | Satellite-derived sea ice export and its impact on Arctic ice mass balance |
| title_sort | satellite derived sea ice export and its impact on arctic ice mass balance |
| url | https://www.the-cryosphere.net/12/3017/2018/tc-12-3017-2018.pdf |
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